如何使用PHP顺序重命名文件夹中的文件？

Question

I have files in a folder called 'thumbs'. They have names based on how they were named / renamed by their original authors. I would like to rename them to be two digit sequentially and I managed to find this PHP code:

function sequentialImages($path, $sort=false) {
 $i = 1;
 $files = glob($path."/{*.gif,*.jpg,*.jpeg,*.png}",GLOB_BRACE|GLOB_NOSORT);

 if ( $sort !== false ) {
  usort($files, $sort);
 }

 $count = count($files);
 foreach ( $files as $file ) {
  $newname = str_pad($i, strlen($count)+1, '0', STR_PAD_LEFT);
  $ext = substr(strrchr($file, '.'), 1);
  $newname = $path.'/'.$newname.'.'.$ext;
  if ( $file != $newname ) {
   rename($file, $newname);  
  }
  $i++;
 }
}

The php to execute this code is called 'rename.php' and it is found in a folder called 'admin'.

Therefore they are as follows

1. 'admin' folder (contains rename.php')
2. 'thumbs' folder (contains images with random names)

Both folders are on the same level.

How can I execute 'rename.php' if both are in different folders.

I tried to include $path = '../thumbs'; but it did not function.

Why isn't not working please?

Answer 1

At the top of your function add:

if( !is_dir($path) ) {
  die("error: $path is not a valid directory.");
  // or whatever error handling method you prefer
}

If, for some reason, parent paths are disabled on your server, or if there is some other issue with the path, you will be notified here.

If that works fine, then step through your code and make sure that everything is as you expect it to be. eg: $files has the contents you expect, $newname is formatted properly, rename() is not returning false which indicates an error likely due to permissions, etc...